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ITT

12AU7 / ECC82 NOS ITT Short Gray Plates Halo Getter AMPLITREX Tested – Low Noise & Microphonics Tube

12AU7 / ECC82 NOS ITT Short Gray Plates Halo Getter AMPLITREX Tested – Low Noise & Microphonics Tube

€34,90 EUR
€34,90 EUR
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12AU7 / ECC82 NOS ITT Short Gray Plates Halo Getter AMPLITREX Tested – Low Noise & Microphonics Tube Made in Japan

Description:

This 12AU7 / ECC82 ITT Made in Japan, featuring short gray plates and a halo getter, represents an extremely balanced solution within vintage Japanese production.

ITT branded tubes of Japanese origin are often appreciated for their precise and consistent construction, with a design approach focused on stability and authentic musical reproduction. The combination of short plates and a halo getter contributes to reliable, quiet, and well-controlled performance, making this tube suitable for a variety of applications.

This is a tube that doesn't aim for dramatic effect, but rather for sonic consistency, offering a linear response and natural musicality, easily integrated into different systems.

Sonic Characteristics

This 12AU7 / ECC82 ITT Made in Japan stands out for its balanced, clean, and musically coherent sound profile, with a reproduction that prioritizes naturalness and stability across the entire spectrum.

Bass: Controlled and well-articulated, with a solid yet never overbearing presence. They provide a precise foundation that supports the sonic message without weighing it down.

Mids: Linear and natural, with particularly convincing reproduction of vocals and acoustic instruments. Musicality emerges spontaneously, with a fluid and believable texture.

Highs: Open and refined, with good extension and always composed texture. The absence of harshness contributes to relaxed and prolonged listening.

Dynamics: Responsive yet controlled, with precise transient response and smooth progression. Maintains coherence even in the most complex passages.

Soundstage: Well-organized, with a stable scene and clear instrument separation. The sound image is orderly and easily decipherable.

🎧 Use in Hi-Fi Amplifiers

In hi-fi applications, this tube integrates very naturally into:

  • preamplifiers
  • buffers
  • tube DACs
  • line stages

It offers quiet, balanced, and reliable performance, contributing to clean and coherent listening. It is particularly suitable for systems where transparency without rigidity and concrete, unadorned musicality are sought.

🎸 Use in Musical Applications

In instrument amplifiers, this 12AU7 ensures:

  • good headroom
  • controlled dynamic response
  • predictable and musical performance

The sound is always balanced, with a well-defined mid-range and a response that easily adapts to different sonic contexts, from clean to light saturation.

🎯 Note for Audiophiles and Technicians

This 12AU7 / ECC82 ITT Made in Japan is particularly suitable for those seeking:

  • tonal balance
  • operational reliability
  • natural musicality

The construction with short gray plates and a halo getter contributes to stable and consistent performance, making it a concrete choice for a wide variety of applications.

A tube that stands out for its ability to easily integrate into a system, offering a clean, musical, and believable result, in the true spirit of Vacuum Tubes Treasures.

Test Results:

Tube tested on AMPLITREX AT-1000 Tube Tester:

  • Test Conditions: Va = 250V, Vg = -8.5V
  • Average 100%: Gm = 2200 ; Ia = 10.5 mA
  • Test Result: VERY STRONG

Tube:

  • Section 1: Gm = 2300 ; Ia = 11.8 mA
  • Section 2: Gm = 2180 ; Ia = 10.6 mA

Additional Tests Performed:

  • Microphonics: Low. Tested and suitable for hi-fi use, including phono stages and guitar amplifiers. Also suitable for V1 position.
  • Balance: The sections are consistent and well-matched, making the tube suitable for use as a phase inverter in hi-fi and instrumental applications.
  • Functionality: Perfectly operational.
  • Emission Quality: Excellent – Very strong and stable emission, without fluctuations.
  • Shorts and GAS: Absent.

Conditions:

  • Condition: NOS - NIB - New Old Stock, New In Box - Tested and working - Supplied in original box. 
  • Cosmetic condition: Excellent – Markings well preserved, minimal signs of age. See photos for details.
  • Manufacturing Code: not decipherable, identifiable by construction characteristics. 1960s

Discover why our tubes are different →

Terms of Sale & Safety

Sales Terms & Product Safety

Each vacuum tube is carefully selected, tested, and verified in our laboratory before shipment. Where stated in the listing, test results, matching data, and declared characteristics refer to measurements performed using the specified test equipment and operating conditions.

Sound descriptions are provided for guidance only and reflect the characteristics generally associated with that particular tube type. Personal sound preferences, tube rolling, or perceived differences between audio systems do not constitute a product defect.

Before installation, please verify the tube’s electrical and mechanical compatibility with your equipment and follow the manufacturer’s instructions.

New production and NOS tubes are shipped with a tamper-evident security seal and internal technical documentation to ensure traceability of the product’s condition at the time of shipment.

Product Safety (GPSR)

Vacuum tubes are electronic components intended exclusively for use in compatible equipment and must be installed in accordance with the equipment manufacturer’s instructions.

Due to their historical or vintage nature, certain technical specifications may be based on original datasheets or equivalent technical documentation when documentation from the specific manufacturer is unavailable.

Use only with suitable equipment. Keep out of reach of children.

Shipping & Returns

Shipping & Returns

We ship worldwide using carefully selected express carriers and protective packaging specifically designed for vacuum tubes.

If you change your mind, you may exercise your right of withdrawal within 14 days of delivery, where applicable under the relevant consumer protection laws. The product must be returned complete with its original packaging and accessories, in the same commercial condition in which it was received. Return shipping costs are the responsibility of the customer.

Every returned item undergoes a technical inspection. Installation, use, tube rolling, or any other handling may reduce the product’s commercial value and may affect the refund amount, in accordance with applicable law.

If you believe the product has a lack of conformity, our laboratory will carry out the necessary inspections and apply the remedies provided by the applicable consumer protection legislation.

For further details, Customers are invited to consult the “Terms and Conditions” and “Refund Policy” sections of our website, or to contact us before placing an order.

Vacuum Tubes Treasures
www.vtt.store | www.vacuumtubestreasures.com
📧 info@vacuumtubestreasures.com

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  • ATTENTION PLEASE

    Please understand that the writing on the glass of vintage valves has become very delicate over the years and comes off easily. You must handle them with extreme care to avoid this. Wear and damage to the writing on the valves reduces their market value and causes damage. Please exercise extreme caution.

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